Location, mainly! Moved and now nowhere close to mountains, or serious hills for that matter, without a drive. The roads are quiet and getting a road bike has been a great way to get to know the area. I think perhaps age is perhaps another factor for me.... I find that cuts and bruises hurt more and take longer to heal nowadays.

Getting a CX bike has been fun as it means I can explore more and get off the road along the multitude of tracks and historical RoW's that litter the area - and I hate riding a mountain bike on the road. Besides that, an MTB is overkill for anything off-road in the area anyway.

I just ride bicycles for a hobby and don't really categorise myself as any form of cyclist!

for me it often depends on the weather. In the winter if it's wet then I usually stick to the roads but on my CX bike with mudguards as I can't be assed cleaning my MTB after every ride. If it's icy or snowy then I generally use the SS MTB. In the warmer months I'll dig out the road bike and the race MTB bike and ride them equally depending on what kind if training I am intending to do.

I'm a mountain biker first but am getting more and more into road biking. Have been riding both for well over 10 years but lately with my 15 year old lad we have been road racing which is in a different league! The feel and sound of a pack of carbon wheels with high pressure tyres at 40kph plus is exhilarating. Still ride MTB to enjoy the forest though and chucking the bike around. Forests for windy days, roads for sunshine.

If I had some decent local trails then I'd likely ride the mtb a lot more (mostly a flashish mishmash of broken up bits of trail, currently a mud fest.) Though love riding the road bikes so it's not like they are second best. Though at the moment I'd be happy to be out on either but riding is limited to mostly turbo time.